He told MTV News: "It was unexpected, I just went to Detroit and I had a show out there and I got a call saying, 'Em [wants you] to come to the studio, come to the studio fast'.

"That was me actually just meeting and greeting. I bumped heads with Eminem [in the past], but it was very brief, that was my first time really chopping it up with him, getting to ask all the questions I wanted to ask him."

The 26-year-old added: "He gave me straightforward answers and really just gave me the game on how to stay creative as possible."

He also revealed that the 'Love the Way You Lie' rapper told him: "Always stay focused on the craft and not indulge in the other crazy stuff that comes around."

Lamar is set to play three UK dates as part of a mini tour next month. He will play shows in Manchester, Birmingham and Leeds.